Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10646952 | Projection bolt welding method | Shoji Aoyama | 2020-05-12 |
| 10632562 | Electrode for electric resistance welding | Jyunnichi Suzuki, Takami Aramaki, Kenji Ninomiya, Hiromi Kudou, Shoji Aoyama | 2020-04-28 |